Seguin I of Gascony

Seguin I Lupo was Duke of Gascony from 812 until 816, when Louis the Pious deposed him "because of his boundless arrogance and wicked ways", according to the contemporary Frankish chroniclers. The "Basques across the Garonne and around the Pyrenees" rebelled against the removal of their duke, but the Frankish king received the submission of the rebels in Dax. The emperor crossed the Pyrenees and "settled matters" in Pamplona. This could imply that the Gascony of Seguin's day was trans-Pyrenean, i.e., comprised lands on both sides of the mountains.